Improvement in filters for cisterns



WZW/W N. FErERs, PHDYOUTNDGRAPH ER. WASHINGTON, D C.

am offer.

ROBERT W. THOMPSON, OF MANSFIELD, lOHIO.

Letters Patent No. 111,701, dated February 7, 1871 IMPROVEMENT IN FILTERS FOR CISTERNS.

The Schedule refen'ed to in these Letter! Patent and making part of same.

To all whom it may concern:

Be it known that I, ROBERT W; THOMPsoN, of Mansfield, in the county of Riehland and State of Ohio, have invented certain improvements in Water-Filters for Oisterns, &c., of which the following is a specification, reference being had to the accom pan yin g drawmg.

My invention relates to an improvedfilter, to be attached to eistern-feeders for removing all coarse impurities from the water during its passage to the cisteru.

The device consists of a rnetallic vessel orbody provided with tnbular necks at its ends, to fit the feeder or water-spout, and with a. removable'filtering medium inside, so that the filter may bc applied to any feeder or spout by removing a le`ngth or section of the latter, and substituting the filter therefor, and so, also, that the filtering medium may be removed and cleansed at will.

Fignre 1 is a sideview of my filter with a portiou of the side broken away;

Fignre 2 is a perspeotive view of theavire frame for holding the Sponge when used as a filtering-material and i Figure is a -perspective view of the wire-gauzeeone, which is used 'either insteadof or in addition to the Sponge.

A represents the metallic body of the filter, madein a cylindrical form, and provided with a tube 01' neck, a, at each end.

The lowerendof the body is made of afunnel-shape, and has its neek a formed on the lower and smaller end of this portion, as shown.

Inside of the body, around the upper end of 'the conical or fnnnel-shaped part, a flange or rim, b, lis formed, as shown in tig. 2.

\Vithin this flange is snspended a Wire frame or basket, B, filled with Sponge, which fills or closes the end of the body, as shown.

This frame or basket B consists of wire arms secured across each other, and provided with hooks c at their ends, wherehy they are suspended from the rim b, as shown. v p

The frame is also provided with an arm or latch, (I, which extends across the top to hold the spongein place, and locks under a hook i'ormed on one of the arms, as shown in figs. l-and 2.

The filter thns constructed is applied to the pipe or spout at any desired point by removing a joint or section of the pipe, and inserting the filter in its place, and connecting the ends of the pipe to the necks a, so that the body forms a continuation of the pipe.

The water, in its passage to the cistern, is thus carried into the body' A, and compelled to pass through the sponge, whereby all leavcs, stickls,and other coarse impurities brought from the roof' are separated from the water, which passes into the cistern in a clear and pure condition. i

The top of the body is made removable, so that access may be had to the interior; or, if preferred, the whole or a part of the top may behinged, so as to turn up, or pivoted, so as to swing around to one side.

When` lcaves, sedirnent, sticks, 8m., lhave accnmulated in the body, they may be removed through the top, and when the sponge has become fool, its frame may he removed and the Sponge taken out and cleaned or renewed. I

A'wire-gauzc cone, D, havingr a rim around its`lower end, is also provided, as shown in fig. 3, and'may, if desired, be fitted onto the flange 'or rim b, so as to take the place of the sponge; or the rim of the cone may bc made of such size that it will fit over the rim b when the Sponge is in place, and thus the cone serve to prevent leaves and similar obstructions from cover'- ing the spo'nge and preventing the passage of water through it.

In manufacturing the filters, they will be made of different sizes, with necks corresponding with the various sizes of' pipe in the market, so that a pnrchaser may select a filter that will fit any ordinarypipe, and apply the filter by simply removing a joint or section of the pipe and attaching the filter in its place.

Having thns described my invention,

What I claim is- 1. A cistern-filter, consisting of the vessel A, provided with the necks or tnbes a, or equivalent means for attaching'zit to the water-condnctor, and having the detachable sponge applied thereto, substantially as described.

2. Thesponge-holder B, construeted as descrihed, and arranged within the vessel A, as set forth.

3. The detachable conical screen D, in combination with the vessel A and sponge-filter, arranged tooperate as herein desoribed. i

` ROBT. W. THOMPSON. Witnesses:

R. GAILEY, H. W. LYMAN. 

